<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0//EN" "http://www.w3.org/TR/REC-html40/strict.dtd">

<html><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><title>OpenLayers.Layer - OpenLayers</title><link rel="stylesheet" type="text/css" href="../../styles/main.css"><script language=JavaScript src="../../javascript/main.js"></script><script language=JavaScript src="../../javascript/prettify.js"></script><script language=JavaScript src="../../javascript/searchdata.js"></script></head><body class="ContentPage" onLoad="NDOnLoad();prettyPrint();"><script language=JavaScript><!--
if (browserType) {document.write("<div class=" + browserType + ">");if (browserVer) {document.write("<div class=" + browserVer + ">"); }}// --></script>

<!--  Generated by Natural Docs, version 1.52 -->
<!--  http://www.naturaldocs.org  -->

<!-- saved from url=(0026)http://www.naturaldocs.org -->




<div id=Content><div class="CClass"><div class=CTopic id=MainTopic><h1 class=CTitle><a name="OpenLayers.Layer"></a>OpenLayers.<wbr>Layer</h1><div class=CBody><!--START_ND_SUMMARY--><div class=Summary><div class=STitle>Summary</div><div class=SBorder><table border=0 cellspacing=0 cellpadding=0 class=STable><tr class="SMain"><td class=SEntry><a href="#OpenLayers.Layer" >OpenLayers.<wbr>Layer</a></td><td class=SDescription></td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Layer.Properties" >Properties</a></td><td class=SDescription></td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.id" >id</a></td><td class=SDescription>{String}</td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.name" >name</a></td><td class=SDescription>{String}</td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.div" >div</a></td><td class=SDescription>{DOMElement}</td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.opacity" >opacity</a></td><td class=SDescription>{Float} The layer&rsquo;s opacity. </td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.alwaysInRange" >alwaysInRange</a></td><td class=SDescription>{Boolean} If a layer&rsquo;s display should not be scale-based, this should be set to true. </td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Layer.Constants" >Constants</a></td><td class=SDescription></td></tr><tr class="SConstant SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.RESOLUTION_PROPERTIES" >RESOLUTION_PROPERTIES</a></td><td class=SDescription>{Array} The properties that are used for calculating resolutions information.</td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Layer.Properties" >Properties</a></td><td class=SDescription></td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.events" >events</a></td><td class=SDescription>{<a href="Events-js.html#OpenLayers.Events" class=LClass >OpenLayers.Events</a>}</td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.map" >map</a></td><td class=SDescription>{<a href="Map-js.html#OpenLayers.Map" class=LClass id=link1 onMouseOver="ShowTip(event, 'tt1', 'link1')" onMouseOut="HideTip('tt1')">OpenLayers.Map</a>} This variable is set when the layer is added to the map, via the accessor function setMap().</td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.isBaseLayer" >isBaseLayer</a></td><td class=SDescription>{Boolean} Whether or not the layer is a base layer. </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.displayInLayerSwitcher" >displayInLayerSwitcher</a></td><td class=SDescription>{Boolean} Display the layer&rsquo;s name in the layer switcher. </td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.visibility" >visibility</a></td><td class=SDescription>{Boolean} The layer should be displayed in the map. </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.attribution" >attribution</a></td><td class=SDescription>{String} Attribution string, displayed when an <a href="Control/Attribution-js.html#OpenLayers.Control.Attribution" class=LClass id=link2 onMouseOver="ShowTip(event, 'tt2', 'link2')" onMouseOut="HideTip('tt2')">OpenLayers.Control.Attribution</a> has been added to the map.</td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.eventListeners" >eventListeners</a></td><td class=SDescription>{Object} If set as an option at construction, the eventListeners object will be registered with <a href="Events-js.html#OpenLayers.Events.on" class=LFunction id=link3 onMouseOver="ShowTip(event, 'tt3', 'link3')" onMouseOut="HideTip('tt3')">OpenLayers.Events.on</a>. </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.gutter" >gutter</a></td><td class=SDescription>{Integer} Determines the width (in pixels) of the gutter around image tiles to ignore. </td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.projection" >projection</a></td><td class=SDescription>{<a href="Projection-js.html#OpenLayers.Projection" class=LClass id=link4 onMouseOver="ShowTip(event, 'tt4', 'link4')" onMouseOut="HideTip('tt4')">OpenLayers.Projection</a>} or {<a href="BaseTypes-js.html#OpenLayers.String" class=LClass id=link5 onMouseOver="ShowTip(event, 'tt5', 'link5')" onMouseOut="HideTip('tt5')">String</a>} Specifies the projection of the layer. </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.units" >units</a></td><td class=SDescription>{String} The layer map units. </td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.scales" >scales</a></td><td class=SDescription>{Array}  An array of map scales in descending order. </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.resolutions" >resolutions</a></td><td class=SDescription>{Array} A list of map resolutions (map units per pixel) in descending order. </td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.maxExtent" >maxExtent</a></td><td class=SDescription>{&lt;OpenLayers.Bounds&gt;|Array} If provided as an array, the array should consist of four values (left, bottom, right, top). </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.minExtent" >minExtent</a></td><td class=SDescription>{&lt;OpenLayers.Bounds&gt;|Array} If provided as an array, the array should consist of four values (left, bottom, right, top). </td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.maxResolution" >maxResolution</a></td><td class=SDescription>{Float} Default max is 360 deg / 256 px, which corresponds to zoom level 0 on gmaps. </td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.minResolution" >minResolution</a></td><td class=SDescription>{Float}</td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.numZoomLevels" >numZoomLevels</a></td><td class=SDescription>{Integer}</td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.minScale" >minScale</a></td><td class=SDescription>{Float}</td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.maxScale" >maxScale</a></td><td class=SDescription>{Float}</td></tr><tr class="SProperty SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.displayOutsideMaxExtent" >displayOutsideMaxExtent</a></td><td class=SDescription>{Boolean} Request map tiles that are completely outside of the max extent for this layer. </td></tr><tr class="SProperty SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.wrapDateLine" >wrapDateLine</a></td><td class=SDescription>{Boolean} Wraps the world at the international dateline, so the map can be panned infinitely in longitudinal direction. </td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Layer.Constructor" >Constructor</a></td><td class=SDescription></td></tr><tr class="SConstructor SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.OpenLayers.Layer" >OpenLayers.<wbr>Layer</a></td><td class=SDescription></td></tr><tr class="SGroup SIndent1"><td class=SEntry><a href="#OpenLayers.Layer.Functions" >Functions</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.setName" id=link6 onMouseOver="ShowTip(event, 'tt6', 'link6')" onMouseOut="HideTip('tt6')">setName</a></td><td class=SDescription>Sets the new layer name for this layer. </td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.addOptions" id=link7 onMouseOver="ShowTip(event, 'tt7', 'link7')" onMouseOut="HideTip('tt7')">addOptions</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.onMapResize" id=link8 onMouseOver="ShowTip(event, 'tt8', 'link8')" onMouseOut="HideTip('tt8')">onMapResize</a></td><td class=SDescription>This function can be implemented by subclasses</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.redraw" id=link9 onMouseOver="ShowTip(event, 'tt9', 'link9')" onMouseOut="HideTip('tt9')">redraw</a></td><td class=SDescription>Redraws the layer. </td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.removeMap" id=link10 onMouseOver="ShowTip(event, 'tt10', 'link10')" onMouseOut="HideTip('tt10')">removeMap</a></td><td class=SDescription>Just as setMap() allows each layer the possibility to take a personalized action on being added to the map, removeMap() allows each layer to take a personalized action on being removed from it. </td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.getImageSize" id=link11 onMouseOver="ShowTip(event, 'tt11', 'link11')" onMouseOut="HideTip('tt11')">getImageSize</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.setTileSize" id=link12 onMouseOver="ShowTip(event, 'tt12', 'link12')" onMouseOut="HideTip('tt12')">setTileSize</a></td><td class=SDescription>Set the tile size based on the map size. </td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.getVisibility" id=link13 onMouseOver="ShowTip(event, 'tt13', 'link13')" onMouseOut="HideTip('tt13')">getVisibility</a></td><td class=SDescription>{Boolean} The layer should be displayed (if in range).</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.setVisibility" id=link14 onMouseOver="ShowTip(event, 'tt14', 'link14')" onMouseOut="HideTip('tt14')">setVisibility</a></td><td class=SDescription>Set the visibility flag for the layer and hide/show &amp; redraw accordingly. </td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.display" id=link15 onMouseOver="ShowTip(event, 'tt15', 'link15')" onMouseOut="HideTip('tt15')">display</a></td><td class=SDescription>Hide or show the Layer. </td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.calculateInRange" id=link16 onMouseOver="ShowTip(event, 'tt16', 'link16')" onMouseOut="HideTip('tt16')">calculateInRange</a></td><td class=SDescription>{Boolean} The layer is displayable at the current map&rsquo;s current resolution. </td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.setIsBaseLayer" id=link17 onMouseOver="ShowTip(event, 'tt17', 'link17')" onMouseOut="HideTip('tt17')">setIsBaseLayer</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.getResolution" id=link18 onMouseOver="ShowTip(event, 'tt18', 'link18')" onMouseOut="HideTip('tt18')">getResolution</a></td><td class=SDescription>{Float} The currently selected resolution of the map, taken from the resolutions array, indexed by current zoom level.</td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.getExtent" id=link19 onMouseOver="ShowTip(event, 'tt19', 'link19')" onMouseOut="HideTip('tt19')">getExtent</a></td><td class=SDescription>{<a href="BaseTypes/Bounds-js.html#OpenLayers.Bounds" class=LClass id=link20 onMouseOver="ShowTip(event, 'tt20', 'link20')" onMouseOut="HideTip('tt20')">OpenLayers.Bounds</a>} A Bounds object which represents the lon/lat bounds of the current viewPort.</td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.getZoomForExtent" id=link21 onMouseOver="ShowTip(event, 'tt21', 'link21')" onMouseOut="HideTip('tt21')">getZoomForExtent</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.getResolutionForZoom" id=link22 onMouseOver="ShowTip(event, 'tt22', 'link22')" onMouseOut="HideTip('tt22')">getResolutionForZoom</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.getZoomForResolution" id=link23 onMouseOver="ShowTip(event, 'tt23', 'link23')" onMouseOut="HideTip('tt23')">getZoomForResolution</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.getLonLatFromViewPortPx" id=link24 onMouseOver="ShowTip(event, 'tt24', 'link24')" onMouseOut="HideTip('tt24')">getLonLatFromViewPortPx</a></td><td class=SDescription></td></tr><tr class="SFunction SIndent2 SMarked"><td class=SEntry><a href="#OpenLayers.Layer.getViewPortPxFromLonLat" id=link25 onMouseOver="ShowTip(event, 'tt25', 'link25')" onMouseOut="HideTip('tt25')">getViewPortPxFromLonLat</a></td><td class=SDescription>Returns a pixel location given a map location. </td></tr><tr class="SFunction SIndent2"><td class=SEntry><a href="#OpenLayers.Layer.setOpacity" id=link26 onMouseOver="ShowTip(event, 'tt26', 'link26')" onMouseOut="HideTip('tt26')">setOpacity</a></td><td class=SDescription>Sets the opacity for the entire layer (all images)</td></tr></table></div></div><!--END_ND_SUMMARY--></div></div></div>

<div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.Properties"></a>Properties</h3></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.id"></a>id</h3><div class=CBody><p>{String}</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.name"></a>name</h3><div class=CBody><p>{String}</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.div"></a>div</h3><div class=CBody><p>{DOMElement}</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.opacity"></a>opacity</h3><div class=CBody><p>{Float} The layer&rsquo;s opacity.&nbsp; Float number between 0.0 and 1.0.&nbsp; Default is 1.</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.alwaysInRange"></a>alwaysInRange</h3><div class=CBody><p>{Boolean} If a layer&rsquo;s display should not be scale-based, this should be set to true.&nbsp; This will cause the layer, as an overlay, to always be &lsquo;active&rsquo;, by always returning true from the calculateInRange() function.</p><p>If not explicitly specified for a layer, its value will be determined on startup in initResolutions() based on whether or not any scale-specific properties have been set as options on the layer.&nbsp; If no scale-specific options have been set on the layer, we assume that it should always be in range.</p><p>See #987 for more info.</p></div></div></div>

<div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.Constants"></a>Constants</h3></div></div>

<div class="CConstant"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.RESOLUTION_PROPERTIES"></a>RESOLUTION_PROPERTIES</h3><div class=CBody><p>{Array} The properties that are used for calculating resolutions information.</p></div></div></div>

<div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.Properties"></a>Properties</h3></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.events"></a>events</h3><div class=CBody><p>{<a href="Events-js.html#OpenLayers.Events" class=LClass >OpenLayers.Events</a>}</p><h4 class=CHeading>Register a listener for a particular event with the following syntax</h4><blockquote><pre class="prettyprint">layer.events.register(type, obj, listener);</pre></blockquote><p>Listeners will be called with a reference to an event object.&nbsp;  The properties of this event depends on exactly what happened.</p><h4 class=CHeading>All event objects have at least the following properties</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>object</td><td class=CDLDescription>{Object} A reference to layer.events.object.</td></tr><tr><td class=CDLEntry>element</td><td class=CDLDescription>{DOMElement} A reference to layer.events.element.</td></tr></table><h4 class=CHeading>Supported map event types</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>loadstart</td><td class=CDLDescription>Triggered when layer loading starts.</td></tr><tr><td class=CDLEntry>loadend</td><td class=CDLDescription>Triggered when layer loading ends.</td></tr><tr><td class=CDLEntry>visibilitychanged</td><td class=CDLDescription>Triggered when layer visibility is changed.</td></tr><tr><td class=CDLEntry>move</td><td class=CDLDescription>Triggered when layer moves (triggered with every mousemove during a drag).</td></tr><tr><td class=CDLEntry>moveend</td><td class=CDLDescription>Triggered when layer is done moving, object passed as argument has a zoomChanged boolean property which tells that the zoom has changed.</td></tr><tr><td class=CDLEntry>added</td><td class=CDLDescription>Triggered after the layer is added to a map.&nbsp;  Listeners will receive an object with a <b>map</b> property referencing the map and a <b>layer</b> property referencing the layer.</td></tr><tr><td class=CDLEntry>removed</td><td class=CDLDescription>Triggered after the layer is removed from the map.&nbsp;  Listeners will receive an object with a <b>map</b> property referencing the map and a <b>layer</b> property referencing the layer.</td></tr></table></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.map"></a>map</h3><div class=CBody><p>{<a href="Map-js.html#OpenLayers.Map" class=LClass id=link27 onMouseOver="ShowTip(event, 'tt1', 'link27')" onMouseOut="HideTip('tt1')">OpenLayers.Map</a>} This variable is set when the layer is added to the map, via the accessor function setMap().</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.isBaseLayer"></a>isBaseLayer</h3><div class=CBody><p>{Boolean} Whether or not the layer is a base layer.&nbsp; This should be set individually by all subclasses.&nbsp; Default is false</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.displayInLayerSwitcher"></a>displayInLayerSwitcher</h3><div class=CBody><p>{Boolean} Display the layer&rsquo;s name in the layer switcher.&nbsp;  Default is true.</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.visibility"></a>visibility</h3><div class=CBody><p>{Boolean} The layer should be displayed in the map.&nbsp;  Default is true.</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.attribution"></a>attribution</h3><div class=CBody><p>{String} Attribution string, displayed when an <a href="Control/Attribution-js.html#OpenLayers.Control.Attribution" class=LClass id=link28 onMouseOver="ShowTip(event, 'tt2', 'link28')" onMouseOut="HideTip('tt2')">OpenLayers.Control.Attribution</a> has been added to the map.</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.eventListeners"></a>eventListeners</h3><div class=CBody><p>{Object} If set as an option at construction, the eventListeners object will be registered with <a href="Events-js.html#OpenLayers.Events.on" class=LFunction id=link29 onMouseOver="ShowTip(event, 'tt3', 'link29')" onMouseOut="HideTip('tt3')">OpenLayers.Events.on</a>.&nbsp;  Object structure must be a listeners object as shown in the example for the events.on method.</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.gutter"></a>gutter</h3><div class=CBody><p>{Integer} Determines the width (in pixels) of the gutter around image tiles to ignore.&nbsp;  By setting this property to a non-zero value, images will be requested that are wider and taller than the tile size by a value of 2 x gutter.&nbsp;  This allows artifacts of rendering at tile edges to be ignored.&nbsp;  Set a gutter value that is equal to half the size of the widest symbol that needs to be displayed.&nbsp; Defaults to zero.&nbsp;  Non-tiled layers always have zero gutter.</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.projection"></a>projection</h3><div class=CBody><p>{<a href="Projection-js.html#OpenLayers.Projection" class=LClass id=link30 onMouseOver="ShowTip(event, 'tt4', 'link30')" onMouseOut="HideTip('tt4')">OpenLayers.Projection</a>} or {<a href="BaseTypes-js.html#OpenLayers.String" class=LClass id=link31 onMouseOver="ShowTip(event, 'tt5', 'link31')" onMouseOut="HideTip('tt5')">String</a>} Specifies the projection of the layer.&nbsp; Can be set in the layer options.&nbsp; If not specified in the layer options, it is set to the default projection specified in the map, when the layer is added to the map.&nbsp; Projection along with default maxExtent and resolutions are set automatically with commercial baselayers in EPSG:3857, such as Google, Bing and OpenStreetMap, and do not need to be specified.&nbsp; Otherwise, if specifying projection, also set maxExtent, maxResolution or resolutions as appropriate.&nbsp; When using vector layers with strategies, layer projection should be set to the projection of the source data if that is different from the map default.</p><p>Can be either a string or an <a href="Projection-js.html#OpenLayers.Projection" class=LClass id=link32 onMouseOver="ShowTip(event, 'tt4', 'link32')" onMouseOut="HideTip('tt4')">OpenLayers.Projection</a> object; if a string is passed, will be converted to an object when the layer is added to the map.</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.units"></a>units</h3><div class=CBody><p>{String} The layer map units.&nbsp;  Defaults to null.&nbsp;  Possible values are &lsquo;degrees&rsquo; (or &lsquo;dd&rsquo;), &lsquo;m&rsquo;, &lsquo;ft&rsquo;, &lsquo;km&rsquo;, &lsquo;mi&rsquo;, &lsquo;inches&rsquo;.&nbsp; Normally taken from the projection.&nbsp; Only required if both map and layers do not define a projection, or if they define a projection which does not define units.</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.scales"></a>scales</h3><div class=CBody><p>{Array}  An array of map scales in descending order.&nbsp;  The values in the array correspond to the map scale denominator.&nbsp;  Note that these values only make sense if the display (monitor) resolution of the client is correctly guessed by whomever is configuring the application.&nbsp;  In addition, the units property must also be set.&nbsp; Use <a href="#OpenLayers.Layer.resolutions" class=LProperty id=link33 onMouseOver="ShowTip(event, 'tt27', 'link33')" onMouseOut="HideTip('tt27')">resolutions</a> instead wherever possible.</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.resolutions"></a>resolutions</h3><div class=CBody><p>{Array} A list of map resolutions (map units per pixel) in descending order.&nbsp;  If this is not set in the layer constructor, it will be set based on other resolution related properties (maxExtent, maxResolution, maxScale, etc.).</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.maxExtent"></a>maxExtent</h3><div class=CBody><p>{&lt;OpenLayers.Bounds&gt;|Array} If provided as an array, the array should consist of four values (left, bottom, right, top).&nbsp; The maximum extent for the layer.&nbsp;  Defaults to null.</p><p>The center of these bounds will not stray outside of the viewport extent during panning.&nbsp;  In addition, if <a href="#OpenLayers.Layer.displayOutsideMaxExtent" class=LProperty id=link34 onMouseOver="ShowTip(event, 'tt28', 'link34')" onMouseOut="HideTip('tt28')">displayOutsideMaxExtent</a> is set to false, data will not be requested that falls completely outside of these bounds.</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.minExtent"></a>minExtent</h3><div class=CBody><p>{&lt;OpenLayers.Bounds&gt;|Array} If provided as an array, the array should consist of four values (left, bottom, right, top).&nbsp; The minimum extent for the layer.&nbsp;  Defaults to null.</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.maxResolution"></a>maxResolution</h3><div class=CBody><p>{Float} Default max is 360 deg / 256 px, which corresponds to zoom level 0 on gmaps.&nbsp;  Specify a different value in the layer options if you are not using the default <a href="Map-js.html#OpenLayers.Map.tileSize" class=LProperty id=link35 onMouseOver="ShowTip(event, 'tt29', 'link35')" onMouseOut="HideTip('tt29')">OpenLayers.Map.tileSize</a> and displaying the whole world.</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.minResolution"></a>minResolution</h3><div class=CBody><p>{Float}</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.numZoomLevels"></a>numZoomLevels</h3><div class=CBody><p>{Integer}</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.minScale"></a>minScale</h3><div class=CBody><p>{Float}</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.maxScale"></a>maxScale</h3><div class=CBody><p>{Float}</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.displayOutsideMaxExtent"></a>displayOutsideMaxExtent</h3><div class=CBody><p>{Boolean} Request map tiles that are completely outside of the max extent for this layer.&nbsp; Defaults to false.</p></div></div></div>

<div class="CProperty"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.wrapDateLine"></a>wrapDateLine</h3><div class=CBody><p>{Boolean} Wraps the world at the international dateline, so the map can be panned infinitely in longitudinal direction.&nbsp; Only use this on the base layer, and only if the layer&rsquo;s maxExtent equals the world bounds.&nbsp; #487 for more info.</p></div></div></div>

<div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.Constructor"></a>Constructor</h3></div></div>

<div class="CConstructor"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.OpenLayers.Layer"></a>OpenLayers.<wbr>Layer</h3><div class=CBody><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>name</td><td class=CDLDescription>{String} The layer name</td></tr><tr><td class=CDLEntry>options</td><td class=CDLDescription>{Object} Hashtable of extra options to tag onto the layer</td></tr></table></div></div></div>

<div class="CGroup"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.Functions"></a>Functions</h3></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.setName"></a>setName</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>setName: function(</td><td class="PParameter  prettyprint " nowrap>newName</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Sets the new layer name for this layer.&nbsp;  Can trigger a changelayer event on the map.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>newName</td><td class=CDLDescription>{String} The new name.</td></tr></table></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.addOptions"></a>addOptions</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>addOptions: function (</td><td class="PParameter  prettyprint " nowrap>newOptions,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>reinitialize</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>newOptions</td><td class=CDLDescription>{Object}</td></tr><tr><td class=CDLEntry>reinitialize</td><td class=CDLDescription>{Boolean} If set to true, and if resolution options of the current baseLayer were changed, the map will be recentered to make sure that it is displayed with a valid resolution, and a changebaselayer event will be triggered.</td></tr></table></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.onMapResize"></a>onMapResize</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">onMapResize: function()</td></tr></table></blockquote><p>This function can be implemented by subclasses</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.redraw"></a>redraw</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">redraw: function()</td></tr></table></blockquote><p>Redraws the layer.&nbsp;  Returns true if the layer was redrawn, false if not.</p><h4 class=CHeading>Returns</h4><p>{Boolean} The layer was redrawn.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.removeMap"></a>removeMap</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>removeMap: function(</td><td class="PParameter  prettyprint " nowrap>map</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Just as setMap() allows each layer the possibility to take a personalized action on being added to the map, removeMap() allows each layer to take a personalized action on being removed from it.&nbsp; For now, this will be mostly unused, except for the EventPane layer, which needs this hook so that it can remove the special invisible pane.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>map</td><td class=CDLDescription>{<a href="Map-js.html#OpenLayers.Map" class=LClass id=link36 onMouseOver="ShowTip(event, 'tt1', 'link36')" onMouseOut="HideTip('tt1')">OpenLayers.Map</a>}</td></tr></table></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.getImageSize"></a>getImageSize</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>getImageSize: function(</td><td class="PParameter  prettyprint " nowrap>bounds</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>bounds</td><td class=CDLDescription>{<a href="BaseTypes/Bounds-js.html#OpenLayers.Bounds" class=LClass id=link37 onMouseOver="ShowTip(event, 'tt20', 'link37')" onMouseOut="HideTip('tt20')">OpenLayers.Bounds</a>} optional tile bounds, can be used by subclasses that have to deal with different tile sizes at the layer extent edges (e.g.&nbsp; Zoomify)</td></tr></table><h4 class=CHeading>Returns</h4><p>{<a href="BaseTypes/Size-js.html#OpenLayers.Size" class=LClass id=link38 onMouseOver="ShowTip(event, 'tt30', 'link38')" onMouseOut="HideTip('tt30')">OpenLayers.Size</a>} The size that the image should be, taking into account gutters.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.setTileSize"></a>setTileSize</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>setTileSize: function(</td><td class="PParameter  prettyprint " nowrap>size</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Set the tile size based on the map size.&nbsp;  This also sets layer.imageSize or use by Tile.Image.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>size</td><td class=CDLDescription>{<a href="BaseTypes/Size-js.html#OpenLayers.Size" class=LClass id=link39 onMouseOver="ShowTip(event, 'tt30', 'link39')" onMouseOut="HideTip('tt30')">OpenLayers.Size</a>}</td></tr></table></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.getVisibility"></a>getVisibility</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">getVisibility: function()</td></tr></table></blockquote><h4 class=CHeading>Returns</h4><p>{Boolean} The layer should be displayed (if in range).</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.setVisibility"></a>setVisibility</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>setVisibility: function(</td><td class="PParameter  prettyprint " nowrap>visibility</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Set the visibility flag for the layer and hide/show &amp; redraw accordingly.&nbsp; Fire event unless otherwise specified</p><p>Note that visibility is no longer simply whether or not the layer&rsquo;s style.display is set to &ldquo;block&rdquo;.&nbsp; Now we store a &lsquo;visibility&rsquo; state property on the layer class, this allows us to remember whether or not we <b>desire</b> for a layer to be visible.&nbsp; In the case where the map&rsquo;s resolution is out of the layer&rsquo;s range, this desire may be subverted.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>visibility</td><td class=CDLDescription>{Boolean} Whether or not to display the layer (if in range)</td></tr></table></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.display"></a>display</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>display: function(</td><td class="PParameter  prettyprint " nowrap>display</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Hide or show the Layer.&nbsp; This is designed to be used internally, and is not generally the way to enable or disable the layer.&nbsp; For that, use the setVisibility function instead..</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>display</td><td class=CDLDescription>{Boolean}</td></tr></table></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.calculateInRange"></a>calculateInRange</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">calculateInRange: function()</td></tr></table></blockquote><h4 class=CHeading>Returns</h4><p>{Boolean} The layer is displayable at the current map&rsquo;s current resolution.&nbsp; Note that if &lsquo;alwaysInRange&rsquo; is true for the layer, this function will always return true.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.setIsBaseLayer"></a>setIsBaseLayer</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>setIsBaseLayer: function(</td><td class="PParameter  prettyprint " nowrap>isBaseLayer</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>isBaseLayer</td><td class=CDLDescription>{Boolean}</td></tr></table></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.getResolution"></a>getResolution</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">getResolution: function()</td></tr></table></blockquote><h4 class=CHeading>Returns</h4><p>{Float} The currently selected resolution of the map, taken from the resolutions array, indexed by current zoom level.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.getExtent"></a>getExtent</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">getExtent: function()</td></tr></table></blockquote><h4 class=CHeading>Returns</h4><p>{<a href="BaseTypes/Bounds-js.html#OpenLayers.Bounds" class=LClass id=link40 onMouseOver="ShowTip(event, 'tt20', 'link40')" onMouseOut="HideTip('tt20')">OpenLayers.Bounds</a>} A Bounds object which represents the lon/lat bounds of the current viewPort.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.getZoomForExtent"></a>getZoomForExtent</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>getZoomForExtent: function(</td><td class="PParameter  prettyprint " nowrap>extent,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>closest</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>extent</td><td class=CDLDescription>{<a href="BaseTypes/Bounds-js.html#OpenLayers.Bounds" class=LClass id=link41 onMouseOver="ShowTip(event, 'tt20', 'link41')" onMouseOut="HideTip('tt20')">OpenLayers.Bounds</a>}</td></tr><tr><td class=CDLEntry>closest</td><td class=CDLDescription>{Boolean} Find the zoom level that most closely fits the specified bounds.&nbsp; Note that this may result in a zoom that does not exactly contain the entire extent.&nbsp; Default is false.</td></tr></table><h4 class=CHeading>Returns</h4><p>{Integer} The index of the zoomLevel (entry in the resolutions array) for the passed-in extent.&nbsp; We do this by calculating the ideal resolution for the given extent (based on the map size) and then calling getZoomForResolution(), passing along the &lsquo;closest&rsquo; parameter.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.getResolutionForZoom"></a>getResolutionForZoom</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>getResolutionForZoom: function(</td><td class="PParameter  prettyprint " nowrap>zoom</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>zoom</td><td class=CDLDescription>{Float}</td></tr></table><h4 class=CHeading>Returns</h4><p>{Float} A suitable resolution for the specified zoom.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.getZoomForResolution"></a>getZoomForResolution</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>getZoomForResolution: function(</td><td class="PParameter  prettyprint " nowrap>resolution,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>closest</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>resolution</td><td class=CDLDescription>{Float}</td></tr><tr><td class=CDLEntry>closest</td><td class=CDLDescription>{Boolean} Find the zoom level that corresponds to the absolute closest resolution, which may result in a zoom whose corresponding resolution is actually smaller than we would have desired (if this is being called from a getZoomForExtent() call, then this means that the returned zoom index might not actually contain the entire extent specified... but it&rsquo;ll be close).&nbsp; Default is false.</td></tr></table><h4 class=CHeading>Returns</h4><p>{Integer} The index of the zoomLevel (entry in the resolutions array) that corresponds to the best fit resolution given the passed in value and the &lsquo;closest&rsquo; specification.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.getLonLatFromViewPortPx"></a>getLonLatFromViewPortPx</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>getLonLatFromViewPortPx: function (</td><td class="PParameter  prettyprint " nowrap>viewPortPx</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>viewPortPx</td><td class=CDLDescription>{&lt;OpenLayers.Pixel&gt;|Object} An OpenLayers.Pixel or an object with a &lsquo;x&rsquo; and &lsquo;y&rsquo; properties.</td></tr></table><h4 class=CHeading>Returns</h4><p>{<a href="BaseTypes/LonLat-js.html#OpenLayers.LonLat" class=LClass id=link42 onMouseOver="ShowTip(event, 'tt31', 'link42')" onMouseOut="HideTip('tt31')">OpenLayers.LonLat</a>} An OpenLayers.LonLat which is the passed-in view port <a href="BaseTypes/Pixel-js.html#OpenLayers.Pixel" class=LClass id=link43 onMouseOver="ShowTip(event, 'tt32', 'link43')" onMouseOut="HideTip('tt32')">OpenLayers.Pixel</a>, translated into lon/lat by the layer.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.getViewPortPxFromLonLat"></a>getViewPortPxFromLonLat</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>getViewPortPxFromLonLat: function (</td><td class="PParameter  prettyprint " nowrap>lonlat,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>resolution</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Returns a pixel location given a map location.&nbsp;  This method will return fractional pixel values.</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>lonlat</td><td class=CDLDescription>{&lt;OpenLayers.LonLat&gt;|Object} An OpenLayers.LonLat or an object with a &lsquo;lon&rsquo; and &lsquo;lat&rsquo; properties.</td></tr></table><h4 class=CHeading>Returns</h4><p>{<a href="BaseTypes/Pixel-js.html#OpenLayers.Pixel" class=LClass id=link44 onMouseOver="ShowTip(event, 'tt32', 'link44')" onMouseOut="HideTip('tt32')">OpenLayers.Pixel</a>} An <a href="BaseTypes/Pixel-js.html#OpenLayers.Pixel" class=LClass id=link45 onMouseOver="ShowTip(event, 'tt32', 'link45')" onMouseOut="HideTip('tt32')">OpenLayers.Pixel</a> which is the passed-in lonlat translated into view port pixels.</p></div></div></div>

<div class="CFunction"><div class=CTopic><h3 class=CTitle><a name="OpenLayers.Layer.setOpacity"></a>setOpacity</h3><div class=CBody><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>setOpacity: function(</td><td class="PParameter  prettyprint " nowrap>opacity</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote><p>Sets the opacity for the entire layer (all images)</p><h4 class=CHeading>Parameters</h4><table border=0 cellspacing=0 cellpadding=0 class=CDescriptionList><tr><td class=CDLEntry>opacity</td><td class=CDLDescription>{Float}</td></tr></table></div></div></div>

</div><!--Content-->


<div id=Footer><a href="http://www.naturaldocs.org">Generated by Natural Docs</a></div><!--Footer-->


<div id=Menu><div class=MTitle>OpenLayers<div class=MSubTitle>JavaScript Mapping Library</div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent32')">OpenLayers</a><div class=MGroupContent id=MGroupContent32><div class=MEntry><div class=MFile><a href="../OpenLayers-js.html">OpenLayers</a></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent1')">BaseTypes</a><div class=MGroupContent id=MGroupContent1><div class=MEntry><div class=MFile><a href="BaseTypes-js.html">Base Types</a></div></div><div class=MEntry><div class=MFile><a href="BaseTypes/Bounds-js.html">Bounds</a></div></div><div class=MEntry><div class=MFile><a href="BaseTypes/Class-js.html">Class</a></div></div><div class=MEntry><div class=MFile><a href="BaseTypes/Date-js.html">Date</a></div></div><div class=MEntry><div class=MFile><a href="BaseTypes/Element-js.html">Element</a></div></div><div class=MEntry><div class=MFile><a href="BaseTypes/LonLat-js.html">LonLat</a></div></div><div class=MEntry><div class=MFile><a href="BaseTypes/Pixel-js.html">Pixel</a></div></div><div class=MEntry><div class=MFile><a href="BaseTypes/Size-js.html">Size</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent3')">Control</a><div class=MGroupContent id=MGroupContent3><div class=MEntry><div class=MFile><a href="Control-js.html">Control</a></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent2')">Control</a><div class=MGroupContent id=MGroupContent2><div class=MEntry><div class=MFile><a href="Control/ArgParser-js.html">ArgParser</a></div></div><div class=MEntry><div class=MFile><a href="Control/Attribution-js.html">Attribution</a></div></div><div class=MEntry><div class=MFile><a href="Control/Button-js.html">Button</a></div></div><div class=MEntry><div class=MFile><a href="Control/CacheRead-js.html">CacheRead</a></div></div><div class=MEntry><div class=MFile><a href="Control/CacheWrite-js.html">CacheWrite</a></div></div><div class=MEntry><div class=MFile><a href="Control/DragFeature-js.html">DragFeature</a></div></div><div class=MEntry><div class=MFile><a href="Control/DragPan-js.html">DragPan</a></div></div><div class=MEntry><div class=MFile><a href="Control/DrawFeature-js.html">DrawFeature</a></div></div><div class=MEntry><div class=MFile><a href="Control/EditingToolbar-js.html">EditingToolbar</a></div></div><div class=MEntry><div class=MFile><a href="Control/Geolocate-js.html">Geolocate</a></div></div><div class=MEntry><div class=MFile><a href="Control/GetFeature-js.html">GetFeature</a></div></div><div class=MEntry><div class=MFile><a href="Control/Graticule-js.html">Graticule</a></div></div><div class=MEntry><div class=MFile><a href="Control/KeyboardDefaults-js.html">KeyboardDefaults</a></div></div><div class=MEntry><div class=MFile><a href="Control/LayerSwitcher-js.html">LayerSwitcher</a></div></div><div class=MEntry><div class=MFile><a href="Control/Measure-js.html">Measure</a></div></div><div class=MEntry><div class=MFile><a href="Control/ModifyFeature-js.html">ModifyFeature</a></div></div><div class=MEntry><div class=MFile><a href="Control/MousePosition-js.html">MousePosition</a></div></div><div class=MEntry><div class=MFile><a href="Control/Navigation-js.html">Navigation</a></div></div><div class=MEntry><div class=MFile><a href="Control/NavigationHistory-js.html">NavigationHistory</a></div></div><div class=MEntry><div class=MFile><a href="Control/NavToolbar-js.html">NavToolbar</a></div></div><div class=MEntry><div class=MFile><a href="Control/OverviewMap-js.html">OverviewMap</a></div></div><div class=MEntry><div class=MFile><a href="Control/Pan-js.html">Pan</a></div></div><div class=MEntry><div class=MFile><a href="Control/Panel-js.html">Panel</a></div></div><div class=MEntry><div class=MFile><a href="Control/PanPanel-js.html">PanPanel</a></div></div><div class=MEntry><div class=MFile><a href="Control/PanZoom-js.html">PanZoom</a></div></div><div class=MEntry><div class=MFile><a href="Control/PanZoomBar-js.html">PanZoomBar</a></div></div><div class=MEntry><div class=MFile><a href="Control/Permalink-js.html">Permalink</a></div></div><div class=MEntry><div class=MFile><a href="Control/PinchZoom-js.html">PinchZoom</a></div></div><div class=MEntry><div class=MFile><a href="Control/Scale-js.html">Scale</a></div></div><div class=MEntry><div class=MFile><a href="Control/ScaleLine-js.html">ScaleLine</a></div></div><div class=MEntry><div class=MFile><a href="Control/SelectFeature-js.html">SelectFeature</a></div></div><div class=MEntry><div class=MFile><a href="Control/SLDSelect-js.html">SLDSelect</a></div></div><div class=MEntry><div class=MFile><a href="Control/Snapping-js.html">Snapping</a></div></div><div class=MEntry><div class=MFile><a href="Control/Split-js.html">Split</a></div></div><div class=MEntry><div class=MFile><a href="Control/TouchNavigation-js.html">TouchNavigation</a></div></div><div class=MEntry><div class=MFile><a href="Control/TransformFeature-js.html">TransformFeature</a></div></div><div class=MEntry><div class=MFile><a href="Control/UTFGrid-js.html">UTFGrid</a></div></div><div class=MEntry><div class=MFile><a href="Control/WMSGetFeatureInfo-js.html">WMSGetFeatureInfo</a></div></div><div class=MEntry><div class=MFile><a href="Control/WMTSGetFeatureInfo-js.html">WMTSGetFeatureInfo</a></div></div><div class=MEntry><div class=MFile><a href="Control/Zoom-js.html">Zoom</a></div></div><div class=MEntry><div class=MFile><a href="Control/ZoomBox-js.html">ZoomBox</a></div></div><div class=MEntry><div class=MFile><a href="Control/ZoomIn-js.html">ZoomIn</a></div></div><div class=MEntry><div class=MFile><a href="Control/ZoomOut-js.html">ZoomOut</a></div></div><div class=MEntry><div class=MFile><a href="Control/ZoomPanel-js.html">ZoomPanel</a></div></div><div class=MEntry><div class=MFile><a href="Control/ZoomToMaxExtent-js.html">ZoomToMaxExtent</a></div></div></div></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent4')">Feature</a><div class=MGroupContent id=MGroupContent4><div class=MEntry><div class=MFile><a href="Feature-js.html">Feature</a></div></div><div class=MEntry><div class=MFile><a href="Feature/Vector-js.html">Vector</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent5')">Filter</a><div class=MGroupContent id=MGroupContent5><div class=MEntry><div class=MFile><a href="Filter-js.html">Filter</a></div></div><div class=MEntry><div class=MFile><a href="Filter/Comparison-js.html">Comparison</a></div></div><div class=MEntry><div class=MFile><a href="Filter/FeatureId-js.html">FeatureId</a></div></div><div class=MEntry><div class=MFile><a href="Filter/Function-js.html">Function</a></div></div><div class=MEntry><div class=MFile><a href="Filter/Logical-js.html">Logical</a></div></div><div class=MEntry><div class=MFile><a href="Filter/Spatial-js.html">Spatial</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent15')">Format</a><div class=MGroupContent id=MGroupContent15><div class=MEntry><div class=MFile><a href="Format-js.html">Format</a></div></div><div class=MEntry><div class=MFile><a href="Format/ArcXML-js.html">ArcXML</a></div></div><div class=MEntry><div class=MFile><a href="Format/ArcXML/Features-js.html">ArcXML.<wbr>Features</a></div></div><div class=MEntry><div class=MFile><a href="Format/Atom-js.html">Atom</a></div></div><div class=MEntry><div class=MFile><a href="Format/Context-js.html">Context</a></div></div><div class=MEntry><div class=MFile><a href="Format/CQL-js.html">CQL</a></div></div><div class=MEntry><div class=MFile><a href="Format/CSWGetDomain-js.html">CSWGetDomain</a></div></div><div class=MEntry><div class=MFile><a href="Format/CSWGetDomain/v2_0_2-js.html">CSWGetDomain.<wbr>v2_0_2</a></div></div><div class=MEntry><div class=MFile><a href="Format/CSWGetRecords-js.html">CSWGetRecords</a></div></div><div class=MEntry><div class=MFile><a href="Format/CSWGetRecords/v2_0_2-js.html">CSWGetRecords.<wbr>v2_0_2</a></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent6')">Filter</a><div class=MGroupContent id=MGroupContent6><div class=MEntry><div class=MFile><a href="Format/Filter-js.html">Filter</a></div></div><div class=MEntry><div class=MFile><a href="Format/Filter/v1-js.html">v1</a></div></div><div class=MEntry><div class=MFile><a href="Format/Filter/v1_0_0-js.html">v1_0_0</a></div></div><div class=MEntry><div class=MFile><a href="Format/Filter/v1_1_0-js.html">v1_1_0</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent7')">GML</a><div class=MGroupContent id=MGroupContent7><div class=MEntry><div class=MFile><a href="Format/GML-js.html">GML</a></div></div><div class=MEntry><div class=MFile><a href="Format/GML/Base-js.html">Base</a></div></div><div class=MEntry><div class=MFile><a href="Format/GML/v2-js.html">v2</a></div></div><div class=MEntry><div class=MFile><a href="Format/GML/v3-js.html">v3</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent8')">SLD</a><div class=MGroupContent id=MGroupContent8><div class=MEntry><div class=MFile><a href="Format/SLD-js.html">SLD</a></div></div><div class=MEntry><div class=MFile><a href="Format/SLD/v1_0_0_GeoServer-js.html">SLD/<wbr>v1_0_0_GeoServer</a></div></div><div class=MEntry><div class=MFile><a href="Format/SLD/v1-js.html">v1</a></div></div><div class=MEntry><div class=MFile><a href="Format/SLD/v1_0_0-js.html">v1_0_0</a></div></div></div></div></div><div class=MEntry><div class=MFile><a href="Format/GeoJSON-js.html">GeoJSON</a></div></div><div class=MEntry><div class=MFile><a href="Format/GeoRSS-js.html">GeoRSS</a></div></div><div class=MEntry><div class=MFile><a href="Format/GPX-js.html">GPX</a></div></div><div class=MEntry><div class=MFile><a href="Format/JSON-js.html">JSON</a></div></div><div class=MEntry><div class=MFile><a href="Format/KML-js.html">KML</a></div></div><div class=MEntry><div class=MFile><a href="Format/OGCExceptionReport-js.html">OGCExceptionReport</a></div></div><div class=MEntry><div class=MFile><a href="Format/OSM-js.html">OSM</a></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent9')">OWSCommon</a><div class=MGroupContent id=MGroupContent9><div class=MEntry><div class=MFile><a href="Format/OWSCommon-js.html">OWSCommon</a></div></div><div class=MEntry><div class=MFile><a href="Format/OWSCommon/v1-js.html">v1</a></div></div><div class=MEntry><div class=MFile><a href="Format/OWSCommon/v1_0_0-js.html">v1_0_0</a></div></div><div class=MEntry><div class=MFile><a href="Format/OWSCommon/v1_1_0-js.html">v1_1_0</a></div></div></div></div></div><div class=MEntry><div class=MFile><a href="Format/OWSContext-js.html">OWSContext</a></div></div><div class=MEntry><div class=MFile><a href="Format/OWSContext/v0_3_1-js.html">OWSContext.<wbr>v0_3_1</a></div></div><div class=MEntry><div class=MFile><a href="Format/QueryStringFilter-js.html">QueryStringFilter</a></div></div><div class=MEntry><div class=MFile><a href="Format/SOSCapabilities-js.html">SOSCapabilities</a></div></div><div class=MEntry><div class=MFile><a href="Format/SOSCapabilities/v1_0_0-js.html">SOSCapabilities.<wbr>v1_0_0</a></div></div><div class=MEntry><div class=MFile><a href="Format/SOSGetFeatureOfInterest-js.html">SOSGetFeatureOfInterest</a></div></div><div class=MEntry><div class=MFile><a href="Format/SOSGetObservation-js.html">SOSGetObservation</a></div></div><div class=MEntry><div class=MFile><a href="Format/Text-js.html">Text</a></div></div><div class=MEntry><div class=MFile><a href="Format/XML/VersionedOGC-js.html">VersionedOGC</a></div></div><div class=MEntry><div class=MFile><a href="Format/WCSGetCoverage-js.html">WCSGetCoverage version 1.1.0</a></div></div><div class=MEntry><div class=MFile><a href="Format/WFS-js.html">WFS</a></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent10')">WFSCapabilities</a><div class=MGroupContent id=MGroupContent10><div class=MEntry><div class=MFile><a href="Format/WFSCapabilities-js.html">WFSCapabilities</a></div></div><div class=MEntry><div class=MFile><a href="Format/WFSCapabilities/v1-js.html">v1</a></div></div><div class=MEntry><div class=MFile><a href="Format/WFSCapabilities/v1_0_0-js.html">v1_0_0</a></div></div><div class=MEntry><div class=MFile><a href="Format/WFSCapabilities/v1_1_0-js.html">v1_1_0</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent11')">WFST</a><div class=MGroupContent id=MGroupContent11><div class=MEntry><div class=MFile><a href="Format/WFST-js.html">WFST</a></div></div><div class=MEntry><div class=MFile><a href="Format/WFST/v1-js.html">v1</a></div></div><div class=MEntry><div class=MFile><a href="Format/WFST/v1_0_0-js.html">v1_0_0</a></div></div><div class=MEntry><div class=MFile><a href="Format/WFST/v1_1_0-js.html">v1_1_0</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent12')">WMC</a><div class=MGroupContent id=MGroupContent12><div class=MEntry><div class=MFile><a href="Format/WMC-js.html">WMC</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMC/v1-js.html">v1</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMC/v1_0_0-js.html">v1_0_0</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMC/v1_1_0-js.html">v1_1_0</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent13')">WMSCapabilities</a><div class=MGroupContent id=MGroupContent13><div class=MEntry><div class=MFile><a href="Format/WMSCapabilities-js.html">WMSCapabilities</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMSCapabilities/v1-js.html">v1</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMSCapabilities/v1_1-js.html">v1_1</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMSCapabilities/v1_1_0-js.html">v1_1_0</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMSCapabilities/v1_1_1-js.html">v1_1_1</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMSCapabilities/v1_3-js.html">v1_3</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMSCapabilities/v1_3_0-js.html">v1_3_0</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMSCapabilities/v1_1_1_WMSC-js.html">WMSCapabilities/<wbr>v1_1_1_WMSC</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent14')">WMSDescribeLayer</a><div class=MGroupContent id=MGroupContent14><div class=MEntry><div class=MFile><a href="Format/WMSDescribeLayer-js.html">WMSDescribeLayer</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMSDescribeLayer/v1_1-js.html">v1_1</a></div></div></div></div></div><div class=MEntry><div class=MFile><a href="Format/WFSDescribeFeatureType-js.html">WFSDescribeFeatureType</a></div></div><div class=MEntry><div class=MFile><a href="Format/WKT-js.html">WKT</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMSGetFeatureInfo-js.html">WMSGetFeatureInfo</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMTSCapabilities-js.html">WMTSCapabilities</a></div></div><div class=MEntry><div class=MFile><a href="Format/WMTSCapabilities/v1_0_0-js.html">WMTSCapabilities.<wbr>v1_0_0</a></div></div><div class=MEntry><div class=MFile><a href="Format/WPSCapabilities-js.html">WPSCapabilities</a></div></div><div class=MEntry><div class=MFile><a href="Format/WPSCapabilities/v1_0_0-js.html">WPSCapabilities.<wbr>v1_0_0</a></div></div><div class=MEntry><div class=MFile><a href="Format/WPSDescribeProcess-js.html">WPSDescribeProcess</a></div></div><div class=MEntry><div class=MFile><a href="Format/WPSExecute-js.html">WPSExecute version 1.0.0</a></div></div><div class=MEntry><div class=MFile><a href="Format/XLS-js.html">XLS</a></div></div><div class=MEntry><div class=MFile><a href="Format/XLS/v1-js.html">XLS.v1</a></div></div><div class=MEntry><div class=MFile><a href="Format/XLS/v1_1_0-js.html">XLS.<wbr>v1_1_0</a></div></div><div class=MEntry><div class=MFile><a href="Format/XML-js.html">XML</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent16')">Geometry</a><div class=MGroupContent id=MGroupContent16><div class=MEntry><div class=MFile><a href="Geometry-js.html">Geometry</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/Collection-js.html">Collection</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/Curve-js.html">Curve</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/LinearRing-js.html">LinearRing</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/LineString-js.html">LineString</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/MultiLineString-js.html">MultiLineString</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/MultiPoint-js.html">MultiPoint</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/MultiPolygon-js.html">MultiPolygon</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/Point-js.html">Point</a></div></div><div class=MEntry><div class=MFile><a href="Geometry/Polygon-js.html">Polygon</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent17')">Handler</a><div class=MGroupContent id=MGroupContent17><div class=MEntry><div class=MFile><a href="Handler-js.html">Handler</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Box-js.html">Box</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Click-js.html">Click</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Drag-js.html">Drag</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Feature-js.html">Feature</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Hover-js.html">Hover</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Keyboard-js.html">Keyboard</a></div></div><div class=MEntry><div class=MFile><a href="Handler/MouseWheel-js.html">MouseWheel</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Path-js.html">Path</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Pinch-js.html">Pinch</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Point-js.html">Point</a></div></div><div class=MEntry><div class=MFile><a href="Handler/Polygon-js.html">Polygon</a></div></div><div class=MEntry><div class=MFile><a href="Handler/RegularPolygon-js.html">RegularPolygon</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent18')">Lang</a><div class=MGroupContent id=MGroupContent18><div class=MEntry><div class=MFile><a href="Lang-js.html">Lang</a></div></div><div class=MEntry><div class=MFile><a href="Lang/ar-js.html">ar</a></div></div><div class=MEntry><div class=MFile><a href="Lang/be-tarask-js.html">be-tarask</a></div></div><div class=MEntry><div class=MFile><a href="Lang/bg-js.html">bg</a></div></div><div class=MEntry><div class=MFile><a href="Lang/br-js.html">br</a></div></div><div class=MEntry><div class=MFile><a href="Lang/ca-js.html">ca</a></div></div><div class=MEntry><div class=MFile><a href="Lang/cs-CZ-js.html">cs-CZ</a></div></div><div class=MEntry><div class=MFile><a href="Lang/da-DK-js.html">da-DK</a></div></div><div class=MEntry><div class=MFile><a href="Lang/de-js.html">de</a></div></div><div class=MEntry><div class=MFile><a href="Lang/en-js.html">en</a></div></div><div class=MEntry><div class=MFile><a href="Lang/en-CA-js.html">en-CA</a></div></div><div class=MEntry><div class=MFile><a href="Lang/es-js.html">es</a></div></div><div class=MEntry><div class=MFile><a href="Lang/el-js.html">el</a></div></div><div class=MEntry><div class=MFile><a href="Lang/fi-js.html">fi</a></div></div><div class=MEntry><div class=MFile><a href="Lang/fr-js.html">fr</a></div></div><div class=MEntry><div class=MFile><a href="Lang/fur-js.html">fur</a></div></div><div class=MEntry><div class=MFile><a href="Lang/gl-js.html">gl</a></div></div><div class=MEntry><div class=MFile><a href="Lang/gsw-js.html">gsw</a></div></div><div class=MEntry><div class=MFile><a href="Lang/hr-js.html">hr</a></div></div><div class=MEntry><div class=MFile><a href="Lang/hsb-js.html">hsb</a></div></div><div class=MEntry><div class=MFile><a href="Lang/hu-js.html">hu</a></div></div><div class=MEntry><div class=MFile><a href="Lang/ia-js.html">ia</a></div></div><div class=MEntry><div class=MFile><a href="Lang/id-js.html">id</a></div></div><div class=MEntry><div class=MFile><a href="Lang/io-js.html">io</a></div></div><div class=MEntry><div class=MFile><a href="Lang/is-js.html">is</a></div></div><div class=MEntry><div class=MFile><a href="Lang/it-js.html">it</a></div></div><div class=MEntry><div class=MFile><a href="Lang/ja-js.html">ja</a></div></div><div class=MEntry><div class=MFile><a href="Lang/km-js.html">km</a></div></div><div class=MEntry><div class=MFile><a href="Lang/ksh-js.html">ksh</a></div></div><div class=MEntry><div class=MFile><a href="Lang/lt-js.html">lt</a></div></div><div class=MEntry><div class=MFile><a href="Lang/nds-js.html">nds</a></div></div><div class=MEntry><div class=MFile><a href="Lang/nb-js.html">nb</a></div></div><div class=MEntry><div class=MFile><a href="Lang/nl-js.html">nl</a></div></div><div class=MEntry><div class=MFile><a href="Lang/nn-js.html">nn</a></div></div><div class=MEntry><div class=MFile><a href="Lang/oc-js.html">oc</a></div></div><div class=MEntry><div class=MFile><a href="Lang/pt-js.html">pt</a></div></div><div class=MEntry><div class=MFile><a href="Lang/pl-js.html">pl</a></div></div><div class=MEntry><div class=MFile><a href="Lang/pt-BR-js.html">pt-BR</a></div></div><div class=MEntry><div class=MFile><a href="Lang/ru-js.html">ru</a></div></div><div class=MEntry><div class=MFile><a href="Lang/sk-js.html">sk</a></div></div><div class=MEntry><div class=MFile><a href="Lang/sv-SE-js.html">sv-SE</a></div></div><div class=MEntry><div class=MFile><a href="Lang/te-js.html">te</a></div></div><div class=MEntry><div class=MFile><a href="Lang/vi-js.html">vi</a></div></div><div class=MEntry><div class=MFile><a href="Lang/zh-CN-js.html">zh-CN</a></div></div><div class=MEntry><div class=MFile><a href="Lang/zh-TW-js.html">zh-TW</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent20')">Layer</a><div class=MGroupContent id=MGroupContent20><div class=MEntry><div class=MFile id=MSelected>Layer</div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent19')">Layer</a><div class=MGroupContent id=MGroupContent19><div class=MEntry><div class=MFile><a href="Layer/ArcGISCache-js.html">ArcGISCache.js</a></div></div><div class=MEntry><div class=MFile><a href="Layer/ArcGIS93Rest-js.html">ArcGIS93Rest</a></div></div><div class=MEntry><div class=MFile><a href="Layer/ArcIMS-js.html">ArcIMS</a></div></div><div class=MEntry><div class=MFile><a href="Layer/Bing-js.html">Bing</a></div></div><div class=MEntry><div class=MFile><a href="Layer/Boxes-js.html">Boxes</a></div></div><div class=MEntry><div class=MFile><a href="Layer/EventPane-js.html">EventPane</a></div></div><div class=MEntry><div class=MFile><a href="Layer/FixedZoomLevels-js.html">FixedZoomLevels</a></div></div><div class=MEntry><div class=MFile><a href="Layer/GeoRSS-js.html">GeoRSS</a></div></div><div class=MEntry><div class=MFile><a href="Layer/Google-js.html">Google</a></div></div><div class=MEntry><div class=MFile><a href="Layer/Google/v3-js.html">Google.v3</a></div></div><div class=MEntry><div class=MFile><a href="Layer/Grid-js.html">Grid</a></div></div><div class=MEntry><div class=MFile><a href="Layer/HTTPRequest-js.html">HTTPRequest</a></div></div><div class=MEntry><div class=MFile><a href="Layer/Image-js.html">Image</a></div></div><div class=MEntry><div class=MFile><a href="Layer/KaMap-js.html">KaMap</a></div></div><div class=MEntry><div class=MFile><a href="Layer/KaMapCache-js.html">KaMapCache</a></div></div><div class=MEntry><div class=MFile><a href="Layer/MapGuide-js.html">MapGuide</a></div></div><div class=MEntry><div class=MFile><a href="Layer/MapServer-js.html">MapServer</a></div></div><div class=MEntry><div class=MFile><a href="Layer/Markers-js.html">Markers</a></div></div><div class=MEntry><div class=MFile><a href="Layer/OSM-js.html">OSM</a></div></div><div class=MEntry><div class=MFile><a href="Layer/PointGrid-js.html">PointGrid</a></div></div><div class=MEntry><div class=MFile><a href="Layer/PointTrack-js.html">PointTrack</a></div></div><div class=MEntry><div class=MFile><a href="Layer/SphericalMercator-js.html">SphericalMercator</a></div></div><div class=MEntry><div class=MFile><a href="Layer/Text-js.html">Text</a></div></div><div class=MEntry><div class=MFile><a href="Layer/TileCache-js.html">TileCache</a></div></div><div class=MEntry><div class=MFile><a href="Layer/TMS-js.html">TMS</a></div></div><div class=MEntry><div class=MFile><a href="Layer/Vector-js.html">Vector</a></div></div><div class=MEntry><div class=MFile><a href="Layer/Vector/RootContainer-js.html">Vector.<wbr>RootContainer</a></div></div><div class=MEntry><div class=MFile><a href="Layer/WMS-js.html">WMS</a></div></div><div class=MEntry><div class=MFile><a href="Layer/WMTS-js.html">WMTS</a></div></div><div class=MEntry><div class=MFile><a href="Layer/WorldWind-js.html">WorldWind</a></div></div><div class=MEntry><div class=MFile><a href="Layer/XYZ-js.html">XYZ</a></div></div><div class=MEntry><div class=MFile><a href="Layer/Zoomify-js.html">Zoomify</a></div></div><div class=MEntry><div class=MFile><a href="Layer/UTFGrid-js.html">UTFGrid</a></div></div></div></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent21')">Marker</a><div class=MGroupContent id=MGroupContent21><div class=MEntry><div class=MFile><a href="Marker-js.html">Marker</a></div></div><div class=MEntry><div class=MFile><a href="Marker/Box-js.html">Box</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent22')">Popup</a><div class=MGroupContent id=MGroupContent22><div class=MEntry><div class=MFile><a href="Popup-js.html">Popup</a></div></div><div class=MEntry><div class=MFile><a href="Popup/Anchored-js.html">Anchored</a></div></div><div class=MEntry><div class=MFile><a href="Popup/AnchoredBubble-js.html">AnchoredBubble</a></div></div><div class=MEntry><div class=MFile><a href="Popup/Framed-js.html">Framed</a></div></div><div class=MEntry><div class=MFile><a href="Popup/FramedCloud-js.html">FramedCloud</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent25')">Protocol</a><div class=MGroupContent id=MGroupContent25><div class=MEntry><div class=MFile><a href="Protocol-js.html">Protocol</a></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent23')">Protocol</a><div class=MGroupContent id=MGroupContent23><div class=MEntry><div class=MFile><a href="Protocol/CSW-js.html">CSW</a></div></div><div class=MEntry><div class=MFile><a href="Protocol/CSW/v2_0_2-js.html">CSW.<wbr>v2_0_2</a></div></div><div class=MEntry><div class=MFile><a href="Protocol/HTTP-js.html">HTTP</a></div></div><div class=MEntry><div class=MFile><a href="Protocol/Script-js.html">Script</a></div></div><div class=MEntry><div class=MFile><a href="Protocol/SOS-js.html">SOS.<wbr>DEFAULTS</a></div></div><div class=MEntry><div class=MFile><a href="Protocol/SOS/v1_0_0-js.html">SOS.<wbr>v1_0_0</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent24')">WFS</a><div class=MGroupContent id=MGroupContent24><div class=MEntry><div class=MFile><a href="Protocol/WFS-js.html">WFS</a></div></div><div class=MEntry><div class=MFile><a href="Protocol/WFS/v1-js.html">v1</a></div></div><div class=MEntry><div class=MFile><a href="Protocol/WFS/v1_0_0-js.html">v1_0_0</a></div></div><div class=MEntry><div class=MFile><a href="Protocol/WFS/v1_1_0-js.html">v1_1_0</a></div></div></div></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent26')">Renderer</a><div class=MGroupContent id=MGroupContent26><div class=MEntry><div class=MFile><a href="Renderer-js.html">Renderer</a></div></div><div class=MEntry><div class=MFile><a href="Renderer/Canvas-js.html">Canvas</a></div></div><div class=MEntry><div class=MFile><a href="Renderer/Elements-js.html">ElementsIndexer</a></div></div><div class=MEntry><div class=MFile><a href="Renderer/SVG-js.html">SVG</a></div></div><div class=MEntry><div class=MFile><a href="Renderer/VML-js.html">VML</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent27')">Request</a><div class=MGroupContent id=MGroupContent27><div class=MEntry><div class=MFile><a href="Request-js.html">Request</a></div></div><div class=MEntry><div class=MFile><a href="Request/XMLHttpRequest-js.html">XMLHttpRequest</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent28')">Strategy</a><div class=MGroupContent id=MGroupContent28><div class=MEntry><div class=MFile><a href="Strategy-js.html">Strategy</a></div></div><div class=MEntry><div class=MFile><a href="Strategy/BBOX-js.html">BBOX</a></div></div><div class=MEntry><div class=MFile><a href="Strategy/Cluster-js.html">Cluster</a></div></div><div class=MEntry><div class=MFile><a href="Strategy/Filter-js.html">Filter</a></div></div><div class=MEntry><div class=MFile><a href="Strategy/Fixed-js.html">Fixed</a></div></div><div class=MEntry><div class=MFile><a href="Strategy/Paging-js.html">Paging</a></div></div><div class=MEntry><div class=MFile><a href="Strategy/Refresh-js.html">Refresh</a></div></div><div class=MEntry><div class=MFile><a href="Strategy/Save-js.html">Save</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent29')">Symbolizer</a><div class=MGroupContent id=MGroupContent29><div class=MEntry><div class=MFile><a href="Symbolizer-js.html">Symbolizer</a></div></div><div class=MEntry><div class=MFile><a href="Symbolizer/Line-js.html">Line</a></div></div><div class=MEntry><div class=MFile><a href="Symbolizer/Point-js.html">Point</a></div></div><div class=MEntry><div class=MFile><a href="Symbolizer/Polygon-js.html">Polygon</a></div></div><div class=MEntry><div class=MFile><a href="Symbolizer/Raster-js.html">Raster</a></div></div><div class=MEntry><div class=MFile><a href="Symbolizer/Text-js.html">Text</a></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent30')">Tile</a><div class=MGroupContent id=MGroupContent30><div class=MEntry><div class=MFile><a href="Tile-js.html">Tile</a></div></div><div class=MEntry><div class=MFile><a href="Tile/Image-js.html">Image</a></div></div><div class=MEntry><div class=MFile><a href="Tile/Image/IFrame-js.html">Image.<wbr>IFrame</a></div></div><div class=MEntry><div class=MFile><a href="Tile/UTFGrid-js.html">UTFGrid</a></div></div></div></div></div><div class=MEntry><div class=MFile><a href="../deprecated-js.html">Deprecated</a></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent31')">OpenLayers</a><div class=MGroupContent id=MGroupContent31><div class=MEntry><div class=MFile><a href="Console-js.html">Console</a></div></div><div class=MEntry><div class=MFile><a href="Events-js.html">Events</a></div></div><div class=MEntry><div class=MFile><a href="Icon-js.html">Icon</a></div></div><div class=MEntry><div class=MFile><a href="Map-js.html">Map</a></div></div><div class=MEntry><div class=MFile><a href="Animation-js.html">OpenLayers.<wbr>Animation</a></div></div><div class=MEntry><div class=MFile><a href="Events/buttonclick-js.html">OpenLayers.<wbr>Events.<wbr>buttonclick</a></div></div><div class=MEntry><div class=MFile><a href="Kinetic-js.html">OpenLayers.<wbr>Kinetic</a></div></div><div class=MEntry><div class=MFile><a href="Projection-js.html">Projection</a></div></div><div class=MEntry><div class=MFile><a href="Rule-js.html">Rule</a></div></div><div class=MEntry><div class=MFile><a href="SingleFile-js.html">SingleFile.js</a></div></div><div class=MEntry><div class=MFile><a href="Spherical-js.html">Spherical</a></div></div><div class=MEntry><div class=MFile><a href="Style-js.html">Style</a></div></div><div class=MEntry><div class=MFile><a href="Style2-js.html">Style2</a></div></div><div class=MEntry><div class=MFile><a href="StyleMap-js.html">StyleMap</a></div></div><div class=MEntry><div class=MFile><a href="Tween-js.html">Tween</a></div></div><div class=MEntry><div class=MFile><a href="Util-js.html">Util</a></div></div></div></div></div></div></div></div><div class=MEntry><div class=MGroup><a href="javascript:ToggleMenu('MGroupContent33')">Index</a><div class=MGroupContent id=MGroupContent33><div class=MEntry><div class=MIndex><a href="../../index/General.html">Everything</a></div></div><div class=MEntry><div class=MIndex><a href="../../index/Classes.html">Classes</a></div></div><div class=MEntry><div class=MIndex><a href="../../index/Constants.html">Constants</a></div></div><div class=MEntry><div class=MIndex><a href="../../index/Functions.html">Functions</a></div></div><div class=MEntry><div class=MIndex><a href="../../index/Properties.html">Properties</a></div></div><div class=MEntry><div class=MIndex><a href="../../index/Files.html">Files</a></div></div><div class=MEntry><div class=MIndex><a href="../../index/Constructor.html">Constructor</a></div></div></div></div></div><script type="text/javascript"><!--
var searchPanel = new SearchPanel("searchPanel", "HTML", "../../search");
--></script><div id=MSearchPanel class=MSearchPanelInactive><input type=text id=MSearchField value=Search onFocus="searchPanel.OnSearchFieldFocus(true)" onBlur="searchPanel.OnSearchFieldFocus(false)" onKeyUp="searchPanel.OnSearchFieldChange()"><select id=MSearchType onFocus="searchPanel.OnSearchTypeFocus(true)" onBlur="searchPanel.OnSearchTypeFocus(false)" onChange="searchPanel.OnSearchTypeChange()"><option  id=MSearchEverything selected value="General">Everything</option><option value="Classes">Classes</option><option value="Constants">Constants</option><option value="Constructor">Constructor</option><option value="Files">Files</option><option value="Functions">Functions</option><option value="Properties">Properties</option></select></div><script language=JavaScript><!--
HideAllBut([20, 32], 34);// --></script></div><!--Menu-->



<!--START_ND_TOOLTIPS-->
<div class=CToolTip id="tt1"><div class=CClass>Instances of OpenLayers.Map are interactive maps embedded in a web page. </div></div><div class=CToolTip id="tt2"><div class=CClass>The attribution control adds attribution from layers to the map display. </div></div><div class=CToolTip id="tt3"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>on: function(</td><td class="PParameter  prettyprint " nowrap>object</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Convenience method for registering listeners with a common scope. </div></div><div class=CToolTip id="tt4"><div class=CClass>Methods for coordinate transforms between coordinate systems. </div></div><div class=CToolTip id="tt5"><div class=CClass>Contains convenience functions for string manipulation.</div></div><div class=CToolTip id="tt6"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>setName: function(</td><td class="PParameter  prettyprint " nowrap>newName</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Sets the new layer name for this layer. </div></div><div class=CToolTip id="tt7"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>addOptions: function (</td><td class="PParameter  prettyprint " nowrap>newOptions,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>reinitialize</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote></div></div><div class=CToolTip id="tt8"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">onMapResize: function()</td></tr></table></blockquote>This function can be implemented by subclasses</div></div><div class=CToolTip id="tt9"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">redraw: function()</td></tr></table></blockquote>Redraws the layer. </div></div><div class=CToolTip id="tt10"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>removeMap: function(</td><td class="PParameter  prettyprint " nowrap>map</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Just as setMap() allows each layer the possibility to take a personalized action on being added to the map, removeMap() allows each layer to take a personalized action on being removed from it. </div></div><div class=CToolTip id="tt11"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>getImageSize: function(</td><td class="PParameter  prettyprint " nowrap>bounds</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote></div></div><div class=CToolTip id="tt12"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>setTileSize: function(</td><td class="PParameter  prettyprint " nowrap>size</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Set the tile size based on the map size. </div></div><div class=CToolTip id="tt13"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">getVisibility: function()</td></tr></table></blockquote>{Boolean} The layer should be displayed (if in range).</div></div><div class=CToolTip id="tt14"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>setVisibility: function(</td><td class="PParameter  prettyprint " nowrap>visibility</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Set the visibility flag for the layer and hide/show &amp; redraw accordingly. </div></div><div class=CToolTip id="tt15"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>display: function(</td><td class="PParameter  prettyprint " nowrap>display</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Hide or show the Layer. </div></div><div class=CToolTip id="tt16"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">calculateInRange: function()</td></tr></table></blockquote>{Boolean} The layer is displayable at the current map&rsquo;s current resolution. </div></div><div class=CToolTip id="tt17"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>setIsBaseLayer: function(</td><td class="PParameter  prettyprint " nowrap>isBaseLayer</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote></div></div><div class=CToolTip id="tt18"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">getResolution: function()</td></tr></table></blockquote>{Float} The currently selected resolution of the map, taken from the resolutions array, indexed by current zoom level.</div></div><div class=CToolTip id="tt19"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">getExtent: function()</td></tr></table></blockquote>{OpenLayers.Bounds} A Bounds object which represents the lon/lat bounds of the current viewPort.</div></div><div class=CToolTip id="tt20"><div class=CClass>Instances of this class represent bounding boxes. </div></div><div class=CToolTip id="tt21"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>getZoomForExtent: function(</td><td class="PParameter  prettyprint " nowrap>extent,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>closest</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote></div></div><div class=CToolTip id="tt22"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>getResolutionForZoom: function(</td><td class="PParameter  prettyprint " nowrap>zoom</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote></div></div><div class=CToolTip id="tt23"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>getZoomForResolution: function(</td><td class="PParameter  prettyprint " nowrap>resolution,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>closest</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote></div></div><div class=CToolTip id="tt24"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>getLonLatFromViewPortPx: function (</td><td class="PParameter  prettyprint " nowrap>viewPortPx</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote></div></div><div class=CToolTip id="tt25"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>getViewPortPxFromLonLat: function (</td><td class="PParameter  prettyprint " nowrap>lonlat,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>resolution</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Returns a pixel location given a map location. </div></div><div class=CToolTip id="tt26"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>setOpacity: function(</td><td class="PParameter  prettyprint " nowrap>opacity</td><td class="PAfterParameters  prettyprint "nowrap>)</td></tr></table></td></tr></table></blockquote>Sets the opacity for the entire layer (all images)</div></div><div class=CToolTip id="tt27"><div class=CProperty>{Array} A list of map resolutions (map units per pixel) in descending order. </div></div><div class=CToolTip id="tt28"><div class=CProperty>{Boolean} Request map tiles that are completely outside of the max extent for this layer. </div></div><div class=CToolTip id="tt29"><div class=CProperty>{OpenLayers.Size} Set in the map options to override the default tile size for this map.</div></div><div class=CToolTip id="tt30"><div class=CClass>Instances of this class represent a width/height pair</div></div><div class=CToolTip id="tt31"><div class=CClass>This class represents a longitude and latitude pair</div></div><div class=CToolTip id="tt32"><div class=CClass>This class represents a screen coordinate, in x and y coordinates</div></div><!--END_ND_TOOLTIPS-->




<div id=MSearchResultsWindow><iframe src="" frameborder=0 name=MSearchResults id=MSearchResults></iframe><a href="javascript:searchPanel.CloseResultsWindow()" id=MSearchResultsWindowClose>Close</a></div>


<script language=JavaScript><!--
if (browserType) {if (browserVer) {document.write("</div>"); }document.write("</div>");}// --></script></body></html>